Ground – Green, Green with Yellow Stripe, or Bare Wireįig.Single Phase, Line (Hot) – Black or Red.The wire color codes for this category is as follows:

These AC ranges are mostly used in home and office environment. DC Supply Wire Color Codes 120/208/240 Volt AC Wiring Color Codes in USA.The wire color codes followed in USA for AC Supply may be categorized in three sub-categories depending on the nature and range of AC supply. USA Wire Color Codes for DC Supply USA Wiring Color Codes for AC Supply.However, as per local practice, the standard wiring color codes may be divided in two main categories. Any other colors except these may be used for other power lines. NEC defines White or Grey color for neutral wire and green/ green with yellow stripe/ bare copper for ground wire. These are typically used for power wires in “branch circuits”. 1 – Wiring Color Codes Wiring Color Codes in United States of America (USA)Īmerican electrical contractors and electricians must comply with the National Electrical Code (NEC) for the color coding of wires. But here is a useful guide to the significance of different colors used in different parts of the world for common types of AC (alternating current) electrical wiring.įig. Therefore, the significance of any given wire color may vary from country to country. In some countries, the applicable governing body specifies all permissible wiring colors, but in others only a few specific types of wiring are required to have specific colors. It’s a standardization which is followed in regions for better understanding and trace-ability. When to Apply Wiring Color Codes to Wire What are Wiring Color CodesĮach color used for electrical wiring tells us the type and purpose of the wire.Wiring Color Codes in Europe (IEC) for DC Supply.Wiring Color Codes in Europe (IEC) for AC Supply.Wiring Color Codes in Europe including UK (IEC).277/480 Volt AC Wiring Color Codes in USA.120/208/240 Volt AC Wiring Color Codes in USA.Wiring Color Codes in United States of America (USA).Finish: Black powder paint to match our 1650 series of output transformers Units can be run full wave bridge or full wave C.T.SERIES range of units PLUS 2 models designed specifically for 300B tubes (Part Number Models: This series is an upgrade from our entire '200'.Windings: Concentric wound for low stray field and low noise.(shield is internally grounded to the end bell). The primary - greatly attenuating higher frequency current coupling to the secondaries

(except part numberģ79WX - uses a separate 60VAC 0.2 Amp winding).Ĭopper Primary Shield: Our electrostatic shield reduces the capacitive coupling from Tap: 50 VAC tap from high voltage secondary C.T.

Units are designed to operate with BOTH primary windings engaged.

Transformer wires color coding